In micro electronic devices, medical instruments, high-end camera modules, and 5G射频 systems, the requirements for signal transmission cables are increasingly stringent. Cables must not only have thin, flexible, and ductile characteristics but also ensure stable and low-loss transmission of high-speed signals. The 42AWG extremely thin coaxial cable (Micro Coaxial Cable) is a high-performance transmission medium specifically designed to meet such advanced applications. This article will introduce you to how it achieves an "uninterrupted channel" for electronic signals.
What is 42AWG ultra-fine coaxial cable?
"42AWG" represents a wire gauge specification, which is a way to express American Wire Gauge (AWG). The larger the number, the finer the wire diameter—while the diameter of 42AWG is only about 0.0635mm, almost as thin as hair. Micro Coaxial Cable, also known as ultra-thin coaxial cable, is composed of inner conductor, insulation layer, shielding layer, and outer sheath, and has excellent anti-interference capability and signal integrity. It is widely used in internal high-density connection scenarios such as camera modules, ultrasonic probes, endoscopes, drones, and high-speed data transmission equipment.
Second, the structural analysis of ultra-fine coaxial lines
A 42AWG ultra-fine coaxial cable is typically composed of the following four parts:
Inner Conductor: Made of silver-plated copper or gold-plated copper, with high conductivity and strong anti-oxidation capability.
• Dielectric Insulation: Utilize materials with low dielectric constants such as FEP, PEEK, or PFA to minimize signal attenuation to the maximum extent.
Shielding layer: Uses silver-plated copper woven mesh or aluminum foil to effectively resist external electromagnetic interference.
• Outer sheath (Jacket): Choose flexible, high-temperature resistant, and flame-retardant TPU or FEP materials to ensure long-term reliable operation of the cable.
How to achieve lossless transmission of electronic signals through a 42AWG extremely thin coaxial cable?
Low-loss insulating material, ensuring signal purity
Utilizing insulating materials with low dielectric constants such as FEP and PFA, which have excellent high-frequency characteristics, significantly reduces the energy loss of high-frequency signals, ensuring efficient and stable transmission.
High-density shielding structure, better anti-interference performance
The ultra-fine coaxial cable employs a silver-plated copper shielding layer with over 90% weaving density, which can effectively block electromagnetic interference (EMI) in complex environments, maintaining signal integrity.
High-conductivity precision conductor, more stable transmission
The inner conductor is made of silver-plated copper wire, which combines excellent conductivity and corrosion resistance, and is particularly suitable for high-speed digital signals and radio frequency signal transmission.
Multi-core micro customized solutions, flexible space adaptation
Supports 8-core, 16-core, 32-core and other parallel customized designs, which can meet the requirements of compact space wiring while ensuring that the signals of each channel do not interfere with each other.
With its excellent characteristics of extremely fine diameter, high flexibility, high shielding, and low loss, the 42AWG ultra-fine coaxial cable has become an ideal choice for high-speed high-frequency signal transmission within miniature high-end electronic devices. Whether in the fields of medical imaging, radio frequency modules, or intelligent terminals, it carries high-speed signals with "hair-like" precision, ensuring their无损 transmission.
I am Kunshan JieKangFu Precision Electronic, focusing on the design and customization of high-speed signal cable harnesses and ultra-thin coaxial cable harnesses for a long time, committed to providing stable and reliable high-speed interconnect solutions to customers. If you have any related needs or want to learn more, please contact: Manager Yin.
18913280527 (WeChat number)。
